e following order depen phosphorus: OMe)s > PPH3

Organic Chemistry
8th Edition
ISBN:9781305580350
Author:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Publisher:William H. Brown, Brent L. Iverson, Eric Anslyn, Christopher S. Foote
Chapter9: Nucleophilic Substitution And Β-elimination
Section: Chapter Questions
Problem 9.31P
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Using given ligand substitution reaction, give answer of both subparts in clear handwritten!

V(CO)s + PR3 → V(CO)(PR3) + Co
The reaction rate exhibits the following order dependence upon the identity of
the substituent R attached to phosphorus:
PMes > PBU3 > P(OMe)a > PPH3
(i)
Predict with justification whether this substitution reaction will occur
through either associative or dissociate mechanism.
(ii)
Explain in detail why PME3 reacts faster than PBU3 and P(OMe)3.
Transcribed Image Text:V(CO)s + PR3 → V(CO)(PR3) + Co The reaction rate exhibits the following order dependence upon the identity of the substituent R attached to phosphorus: PMes > PBU3 > P(OMe)a > PPH3 (i) Predict with justification whether this substitution reaction will occur through either associative or dissociate mechanism. (ii) Explain in detail why PME3 reacts faster than PBU3 and P(OMe)3.
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